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TableĀ 1 Dust concentration comparison between dry shotcrete and wet shotcrete

From: Pipe flow of pumping wet shotcrete based on lubrication layer

Measuring points Wet shotcrete (mg/m3) Dry shotcrete (mg/m3)
Total dust concentration Respirable dust concentration Total dust concentration Respirable dust concentration
Around spraying workers 14.8 5.3 95.5 49